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OPERATION
BURNER TUBE
OPTICAL FLAME
DETECTOR
FLAME ROD
SPARK ELECTRODE
PILOT BURNER
VENTURI
PREVENTATIVE MAINTENANCE
BURNER ASSEMBLY & SPARK ROD ALIGNMENT
FIGURE 3-70 FIGURE 3-71
The spark rod MUST NOT be parallel with the pilot (Figure 3-70), the rod tip should tilt towards
the pilot head with an 1/8” (eighth of an inch) gap (Figure 3-71). The spark must occur forward
of the pilot buttery outlet, where the gas and air are mixed to ensure consistent pilot lighting.
NOTICE
CORRECT SPARK
ROD ALIGNMENT
(TILTED TO PILOT)
INCORRECT SPARK
ROD ALIGNMENT
(PARALLEL TO PILOT)
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